Prefix 414-375 — Milwaukee Zone 4, WI
- Area code
- 414
- Prefix (NXX)
- 375
- Rate center
- Milwaukee Zone 4
- State
- Wisconsin
- Time zone
- Central
- Code holder
- LEVEL 3 COMMUNICATIONS, LLC - WI
- OCN
- 5489
- Pooled
- Yes (thousands-block pooling)
- Assigned
- 2002-12-16
- LATA
- 356
414-375 identifies a block of numbers in Milwaukee Zone 4, WI, within the 414 area code. Every US prefix is tied to exactly one rate center; this one is Milwaukee Zone 4.
The rate center lies in the Milwaukee-Waukesha, WI Metropolitan Statistical Area. The serving LATA is 356. Local time follows the Central zone.
Treat the on-screen number as a hint, not evidence — 414-375 can be spoofed like any US prefix. If a call feels off, verify through an official callback number and file a complaint with the FCC or FTC.
The assigned code holder is LEVEL 3 COMMUNICATIONS, LLC - WI, operating company number 5489, assigned December 16, 2002. This is a pooled prefix — expect numbers within it to be split across more than one carrier in 1,000-number blocks.
Neighboring prefixes
| Prefix | Rate center | Code holder |
|---|---|---|
| 414-372 | Milwaukee Zone 1 | WISCONSIN BELL INC |
| 414-373 | Milwaukee Zone 1 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC |
| 414-374 | Milwaukee Zone 1 | WISCONSIN BELL INC |
| 414-376 | Milwaukee Zone 5 | LEVEL 3 COMMUNICATIONS, LLC - WI |
| 414-377 | Milwaukee Zone 3 | LEVEL 3 COMMUNICATIONS, LLC - WI |
| 414-378 | Milwaukee Zone 1 | NEW CINGULAR WIRELESS PCS, LLC - IL |
FAQ
Where is 414-375 located?
The prefix is assigned to the Milwaukee Zone 4 rate center in WI, area code 414. It is part of the Milwaukee-Waukesha, WI Metropolitan Statistical Area.
Which company owns 414-375 numbers?
LEVEL 3 COMMUNICATIONS, LLC - WI holds the code, but the prefix is pooled — individual thousands-blocks can be assigned to other carriers, and numbers may be ported to any provider.
Is a call from 414-375 safe to answer?
The prefix itself says nothing about the caller. Legitimate Milwaukee Zone 4 businesses and spoofed robocalls can both display it. Never share personal data with an unverified inbound caller.